Keyboard PREVIOUS, NEXT and PLAY/PAUSE keys - Precision 7770

I use my Precision to run my studio, among other things, and I need a quick way to PAUSE or NEXT audio/video streams. Both sales and 7770 technical documentation for the 7770 refer to PREVIOUS, NEXT and PLAY/PAUSE keys, but my 7770 keyboard doesn't have those keys.

Is there a way to change or create a keyboard shortcut to function as PAUSE, PREVIOUS and NEXT?

See attached pics/screenshots. Notice my keyboard doesn't have the PREVIOUS, NEXT or PLAY/PAUSE keys that I highlighted in red in the tech manual.  I'm wondering if maybe I got the wrong keyboard installed from the factory, since it has the Intel CORE i7 label, when my Precision clearly has a i9.